The Guide to Nature Volume 2

The Guide to Nature Volume 2

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1909 edition. Excerpt: ...is the important information desired. Longitude i. e., the difference between local and Greenwich time is diflicult to obtain and inaccurate. Consequently, latitude must be determined by methods which will not involve an accurate knowledge of the time. The sun's greatest altitude during the twentyfour hours would give the time of local noon and latitude from such an observation could be readily determined; and twelve hours later at midnight the sun's altitude would be least, and latitude could again be determined. 'hen the greatest and least altitudes were the same, or in other words, when the sun did not change in altitude at all (except for its change in declination in the sky), then was the latitude 90, and the north pole was reached. It is readiily seen, the small instruments. the difficulty of determining the horizon, and the bitter cold combine together to make the observations of no great accuracy. Under such conditions it is questionable whether the position of the pole could be determined within ten miles! After making so many carefully planned voyages to the north and after the many years of diligent work looking towards the climax of his life in the discovery of the pole, it does seem that the honor of being first to the top of the world should belong to Peary. It was Peary's accurate observations that paved the way for Cook's success, but it will be very difficult for Peary to prove that he himself was the first to reach the pole. In this conviction it may be said that a polar expedition would give the freest possible rein to an explorer willing to sacrifice his personal honesty to the desire of winning fame. and the applause of the world. Such a traveller could readily fix up his observations, adding a few...show more

Product details

  • Paperback | 164 pages
  • 189 x 246 x 9mm | 304g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236852613
  • 9781236852618